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If you're working on a tight budget, but don't want to compromise on quality, choose MB Quart's Discus Series subs.

The DWF-304 12" subwoofer doesn't skimp on the essentials. The sturdy cast alloy basket teams up with a treated paper woofer cone and polypropylene dustcap to produce plenty of clean, powerful bass. Platinum-coated binding posts ensure solid speaker wire connections, and heavy-duty internal parts stand up to the heat produced when you're rocking the lows.

The DWF-304 works best in small sealed sub boxes, handling a hefty 400 watts of power. Dual voice coils allow plenty of wiring options.

Priced per speaker

Product Highlights:

  • 12" subwoofer with two 4-ohm voice coils
  • treated paper cone with polypropylene dustcap
  • santoprene rubber surround
  • cast-alloy basket
  • power handling: 400 RMS watts (200 watts per voice coil)
  • frequency range: 18-300 Hz
  • sensitivity: 90 dB
  • mounting depth: 5-9/16"
  • sealed box volume: 0.95 cu. ft.
  • Recommended Q-Logic Box Type: 1
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

MB Quart DWF 304 Reviews

Average Customer Review:

4 Reviews

Get Ported Box

Written by: wiggins from Anguilla, MS on January 9, 2006

Crutchfield Customer Review (What's this?)

These subs are bad they slamm hard in the ported box's that I have cost 200.00 a piece though have a amp on each sub pushen 350 rms to each and they are slamming buy these sub you want be disapponited I wasn't thanks crutchfield!!




Written by: Jaime from Haddon Twp.,NJ on January 6, 2006

Crutchfield Customer Review (What's this?)

The unique design of these subs is what caught my eye.
After reading the specs i was impressed and wanted to see if they lived up to the hype. After finding the right amp(not the AP2000 profile amp) these 12's pound something serious i,m definitley impressed wired at a 4 ohm load they pound, cant wait to hear what happens in a 2 ohm load.These subs defenitley live up to the hype 5 stars is an under rating.




Written by: djpaul61 from Selma,NC on December 26, 2005

ONe word 2 exAMple this sub is WHOA!!! it is a beast wire at 2 ohms and at 120rms from a 500 watt amp. the 2 12's in poundin hardin in my SUV



Excellent purchase

Written by: Anonymous from Dothan AL on December 20, 2005

Crutchfield Customer Review (What's this?)

I was curious how these would sound for the price.... i haven't cranked them yet, i bought an audiobahn amp stable at one ohm 1000w rmsx1 and have two of them on it at that single ohm..... At low volumes, they are already impressive, and loud......i will break them in properly, and report back...for the price buy one get one free, and free shipping i got two for 89.99 to my door..... thats why i rated it five stars........nice




Hands-on research

What's in the box?

Download owner's manual

  • 12" Dual-voice-coil subwoofer
  • Plastic cover ring
  • Self-adhesive foam gasket (in 4 pieces)
  • "MB Quart Discus" badge
  • 3 Terminal jumpers (2 short/1 long)
  • 4 Terminal set screws
  • 2mm Allen wrench
  • Installation Manual

Product Research



Woofer Construction: This MB Quart Discus Series woofer is equipped with a treated paper diaphragm with an inverted parabolic polypropylene dust cap and a Santoprene synthetic rubber, inverted roll surround.

Basket: The DWF304's motor structure is supported by a high-strength, non-resonant cast alloy basket.

Kapton Voice Coil Former: Kapton is a highly temperature-resistant, completely non-magnetic plastic foil. Because it has no affect on the magnetic field, the woofer provides more precise, distortion-free music reproduction.

Speaker Terminals: This dual-voice-coil subwoofer has a unique speaker terminal which can accept up to 10-gauge wire. The one-piece terminal block holds the speaker wire in place using set screws (2mm Allen wrench supplied). A plastic cover protects the terminal strip from unwanted contact.

Wiring: The woofer can be connected in the following ways:

  • Standard: You can connect the woofer to two separate amplifier channels, and each channel will see a 4-ohm load. Connections are made to the woofer's +1, +2, -1, and -2 terminals.
  • Parallel: You can connect the woofer to a single amplifier channel which will see a 2-ohm load. Connections are made to the woofer's +1, and -2 terminals. Two supplied short terminal jumpers are attached to the terminal block to link together the two positive terminals and the two negative terminals.
  • Series: You can connect the woofer to a single amplifier channel which will see an 8-ohm load. Connections are made to the woofer's +1, and -2 terminals. The supplied long terminal jumper is attached to the terminal block to link together the +2 and -1 terminals.

Logo Badge: The self-adhesive MB Quart Discus Logo badge can be mounted on the top of the screw cover ring in either direction.


Enclosure Recommendation: MB Quart recommends a sealed enclosure with an internal volume of 0.95 cu.ft. for this woofer.

Mounting Recommendations: The DWF304 can only be top-mounted into the enclosure. The supplied self-adhesive rubber gasket should be placed on the woofer to ensure a tight seal. No mounting hardware is included, however, MB Quart recommends M5 hex-head screws and lock nuts. After installation, the supplied screw cover ring can be fitted to the woofer's outer ring for a custom look.

Miscellaneous Specs:

  • Power Handling: 400 watts RMS (200 watts per voice coil)
  • Mounting Height: 0.266" without cover ring, 0.498" with ring installed

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.